Solve the problem.The maximum number of volts, E, that can be placed across a resistor is given by the formula
where P is the number of watts of power that the resistor can absorb and R is the resistance of the resistor in ohms. Solve this equation for R. Use the result to determine the resistance of a resistor if P is 2 watts and E is 30 volts.
A. R = E2P; 450 ohms
B. R = ; 225 ohms
C. R = ; 450 ohms
D. R = E2P2; 225 ohms
Answer: C
Mathematics
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